1.Hatch packing is a multi-layer and multi-fiber braided packing, The outer jacket is braided from tough pure PTFE fibers with lubricant. Under this is a jacket of multiple wraps of heavy duty gauge PTFE tape. The body of the packing consists of dry loosely braided polypropylene fibers. The inner core is NBR rubber, around which is wrapped additional PTFE tape.
2.Hatch packing is an excellent choice for sealing against virtually all chemicals.
3.Hatch packing is exceptionally resilient and can be made into endless rings in the field.